“Finding a field of stones made of pure sulfur is like finding an oasis in ... a valley that may have been formed by liquid water and debris billions of years ago. Meanwhile, Curiosity is ...

Science instruments on the rover confirmed the stone was pure sulfur—something no mission ... where it would have been warmer, with salty liquid water flowing through," said Kirsten Siebach ...

Scientists believe the channel was carved by liquid water and debris 3 billion ... But this newly discovered rock is made of elemental, or pure sulphur. "No one had pure sulphur on their bingo ...

Pure gold is inert in Earth's mantle and tends to stay there. But when a fluid containing sulfur is added ... This complex is highly mobile in the molten sections of the mantle—the part that ...